Translation Studies on an Annular Field Reversed Configuration Device for Space Propulsion

This research investigated annular field reversed configuration (AFRC)devices for high power electric propulsion by demonstrating the acceleration of these plasmoids using an experimental prototype and measuring the plasmoid's velocity, impulse, and energy efficiency. The AFRC plasmoid translation experiment was design and constructed with the aid of a dynamic circuit model. Two versions of the experiment were built, using underdamped RLC circuits at 10 kHz and 20 kHz. Input energies were varied from 100 J/pulse to 1000 J/pulse for the 10 kHz bank and 100 J/pulse for the 20 kHz bank. The plasmoids were formed in static gas fill of argon, from 1 mTorr to 50 mTorr. The translation of the plasmoid was accomplished by incorporating a small taper into the outer coil, with a half angle of 2°. Magnetic field diagnostics, plasma probes, and single-frame imaging were used to measure the plasmoid's velocity and to diagnose plasmoid behavior. Full details of the device design, construction, and diagnostics are provided in this dissertation. The results from the experiment demonstrated that a repeatable AFRC plasmoid was produced between the coils, yet failed to translate for all tested conditions. The data revealed the plasmoid was limited in lifetime to only a few (4-10) μs, too short for translation at low energy. A global stability study showed that the plasma suffered a radial collapse onto the inner wall early in its lifecycle. The radial collapse was traced to a magnetic pressure imbalance. A correction made to the circuit was successful in restoring an equilibrium pressure balance and prolonging radial stability by an additional 2.5 μs. The equilibrium state was sufficient to confirm that the plasmoid current in an AFRC reaches a steady-state prior to the peak of the coil currents. This implies that the plasmoid will always be driven to the inner wall, unless it translates from the coils prior to peak coil currents. However, ejection of the plasmoid before the peak coil currents results in severe efficiency losses. These results demonstrate the difficulty in designing an AFRC experiment for translation as balancing the different requirements for stability, balance, and efficient translation can have competing consequences.

Bionano Electronics: Magneto-Electric Nanoparticles for Drug Delivery, Brain Stimulation and Imaging Applications

Nanoparticles are often considered as efficient drug delivery vehicles for precisely dispensing the therapeutic payloads specifically to the diseased sites in the patient’s body, thereby minimizing the toxic side effects of the payloads on the healthy tissue. However, the fundamental physics that underlies the nanoparticles’ intrinsic interaction with the surrounding cells is inadequately elucidated. The ability of the nanoparticles to precisely control the release of its payloads externally (on-demand) without depending on the physiological conditions of the target sites has the potential to enable patient- and disease-specific nanomedicine, also known as Personalized NanoMedicine (PNM). In this dissertation, magneto-electric nanoparticles (MENs) were utilized for the first time to enable important functions, such as (i) field-controlled high-efficacy dissipation-free targeted drug delivery system and on-demand release at the sub-cellular level, (ii) non-invasive energy-efficient stimulation of deep brain tissue at body temperature, and (iii) a high-sensitivity contrasting agent to map the neuronal activity in the brain non-invasively. First, this dissertation specifically focuses on using MENs as energy-efficient and dissipation-free field-controlled nano-vehicle for targeted delivery and on-demand release of a anti-cancer Paclitaxel (Taxol) drug and a anti-HIV AZT 5’-triphosphate (AZTTP) drug from 30-nm MENs (CoFe2O4-BaTiO3) by applying low-energy DC and low-frequency (below 1000 Hz) AC fields to separate the functions of delivery and release, respectively. Second, this dissertation focuses on the use of MENs to non-invasively stimulate the deep brain neuronal activity via application of a low energy and low frequency external magnetic field to activate intrinsic electric dipoles at the cellular level through numerical simulations. Third, this dissertation describes the use of MENs to track the neuronal activities in the brain (non-invasively) using a magnetic resonance and a magnetic nanoparticle imaging by monitoring the changes in the magnetization of the MENs surrounding the neuronal tissue under different states. The potential therapeutic and diagnostic impact of this innovative and novel study is highly significant not only in HIV-AIDS, Cancer, Parkinson’s and Alzheimer’s disease but also in many CNS and other diseases, where the ability to remotely control targeted drug delivery/release, and diagnostics is the key.

Theoretical and experimental study on electron interactions with chlorobenzene: Shape resonances and differential cross sections

In this work, we report theoretical and experimental cross sections for elastic scattering of electrons by chlorobenzene (ClB). The theoretical integral and differential cross sections (DCSs) were obtained with the Schwinger multichannel method implemented with pseudopotentials (SMCPP) and the independent atom method with screening corrected additivity rule (IAM-SCAR). The calculations with the SMCPP method were done in the static-exchange (SE) approximation, for energies above 12 eV, and in the static-exchange plus polarization approximation, for energies up to 12 eV. The calculations with the IAM-SCAR method covered energies up to 500 eV. The experimental differential cross sections were obtained in the high resolution electron energy loss spectrometer VG-SEELS 400, in Lisbon, for electron energies from 8.0 eV to 50 eV and angular range from 7 degrees to 110 degrees. From the present theoretical integral cross section (ICS) we discuss the low-energy shape-resonances present in chlorobenzene and compare our computed resonance spectra with available electron transmission spectroscopy data present in the literature. Since there is no other work in the literature reporting differential cross sections for this molecule, we compare our theoretical and experimental DCSs with experimental data available for the parent molecule benzene. Published by AIP Publishing.

Comparison of two HVAC renovation solutions : A case study

Within the aging building stock of Europe, there is great potential of saving energy through renovation and upgrading to modern standards, and to thereby approach the internationally set goals of lower energy use. This paper concerns the planned renovation of the building envelope and HVAC systems in a multi-family house in Ludwigsburg, Germany. Five systemic HVAC solutions were compared, with special focus on two systems: A) Balanced ventilation with HRC + Micro heat pump, and B) Forced exhaust ventilation + Heat pump with exhaust air HRC + Ventilation radiators. Given the predicted heating demand and ventilation rate of the house after renovation, the performance of the two systems was compared, alongside three common systems for reference. Calculations were made using TMF Energi, a tool developed by SP Technical Research Institute of Sweden.    Both systems A and B were found to have the lowest electrical energy use together with the ground source heat pump system for the assumed conditions. For other assumptions, including different climate and degree of insulation, some differences between these three systems were noted. Most significant is the increased electrical use of system B for higher heating loads due to limitations in the power available from the heat source, exhaust air, which is dependent on the ventilation rate.

BODIPY-Porphyrazin-Hybride als panchromatische Lichtsammelsysteme für farbstoffsensibilisierte Solarzellen

In farbstoffsensibilisierten Solarzellen (DSSC) spielen Chromophore, die als Lichtsammel- und Energie-/Elektronentransfersysteme fungieren, eine zentrale Rolle. Phthalocyanine mit ihren intensiven Absorptionsbanden um 400 nm und 700 nm besitzen großes Potential für die effektive Sensibilisierung von Solarzellen. Trotz ihrer vielversprechenden physikochemischen Eigenschaften und intensiver Bemühungen erreichen Phthalocyanin-sensibilisierte Solarzellen nicht die Effizienzen, die bisher mit anderen Chromophorklassen erzielt werden konnten. In der vorliegenden Dissertation wurde die Entwicklung effizienter Lichtsammelsysteme für DSSC auf der Basis von Aza-substituierten Phthalocyaninen, sogenannten Pyrazinoporphyrazinen, verfolgt. Ein besonderer Fokus lag dabei auf einer Verbesserung der Absorptionseigenschaften der Chromophore im Bereich ihrer intrinsischen Absorptionslücke zwischen den Maxima um 400 nm und 700 nm. Um diese optische Lücke zu schließen wurden komplementär absorbierende BODIPY-Farbstoffe kovalent an synthetisch maßgeschneiderte Porphyrazine gebunden. Insgesamt wurden sechs neue Porphyrazin-Sensibilisatoren synthetisiert und photophysikalisch sowie elektrochemisch charakterisiert. Alle in dieser Arbeit untersuchten Porphyrazine tragen sterisch anspruchsvolle Tri(p-tolyl)propinyl-Gruppen um Agglomerationen zu vermeiden. Darüber hinaus wurden die Porphyrazine peripher entweder mit Hydroxy- oder Carboxygruppen als Bindungsstellen für oxidische Materialien ausgestattet sowie mit sechs BODIPY-Auxiliarfarbstoffen funktionalisiert, deren Substitutionsmuster variiert wurden. Zur Darstellung der komplexen Porphyrazine wurde eine Syntheseroute erarbeitet, die statistische Cyclisierungen unterschiedlicher Dinitril-Vorstufen beinhaltete und es ermöglichte, funktionelle Gruppen erst am vorgeformten Makrocyclus einzuführen. Die photophysikalische Untersuchung der hochfunktionalisierten Farbstoffe erfolgte über UV/Vis- und Fluoreszenzspektroskopie. Im Fall der BODIPY-Porphyrazin-Hybride schließt die zusätzliche Absorptionsbande der peripheren BODIPY-Einheiten die intrinsische Absorptionslücke der Porphyrazine. Die Hybride zeigen somit eine breite Absorption über den gesamten sichtbaren Spektralbereich mit hohen Extinktionskoeffizienten von ca. 4·10^5 M^−1cm^−1. Mittels Fluoreszenz- und Anregungsspektren wurde ein photoinduzierter Energie-transfer von den BODIPY-Einheiten auf den Porphyrazinkern nachgewiesen. Das elektrochemische Verhalten der BODIPY- und Porphyrazin-Verbindungen wurde mittels Cyclo- und Square-Wave-Voltammetrie untersucht. Die Effizienzen der Lichtenergieumwandlung wurden mit Hilfe von selbst-hergestellten und standardisierten farbstoffsensibilisierten Solarzellen bewertet. Alle Solarzellen zeigten eine messbare Photoaktivität unter Bestrahlung. Die Wirkungsgrade der Zellen lagen jedoch alle unter 1 %. Generell führten die Carboxyl-funktionalisierten Porphyrazine zu besseren Wirkungsgraden als die analogen, mit der tripodalen Ankergruppe ausgestatteten Derivate. Die mit Hilfe von Adsorptionsisothermen ermittelten Bindungskonstanten der Adsorption der Farbstoffe auf der TiO2-Oberfläche zeigten, dass beide Hafteinheiten eine feste Verankerung der Chromophore auf den TiO2-Elektroden ermöglichten. Insgesamt wirkte sich die Präsenz der peripheren BODIPY-Farbstoffe positiv auf die Wirkungsgrade der Solarzellen aus, jedoch nur in geringem Maß. Dieses Ergebnis wurde hauptsächlich auf die geringe Energiedifferenz zwischen der Leitungsbandkante des TiO2 und den LUMO-Energieniveaus der Chromophore zurückgeführt. Zusätzlich scheinen konkurrierende Prozesse wie die direkte Photoelektroneninjektion von den BODIPY-Einheiten in das TiO2 eine wichtige Rolle zu spielen. Neben der Anwendung in DSSC wurde die Wechselwirkung der Porphyrazine mit Graphen untersucht. Hierzu wurden A3B-Porphyrazine mit Pyrenyl-Seitenketten ausgestattet, die eine nicht-kovalente Verankerung des Chromophors auf Graphen ermöglichen. UV/Vis- und Fluoreszenzmessungen gaben u.a. erste Hinweise auf eine elektronische Kommunikation zwischen den beiden Hybridpartnern.

Armazenamento sazonal de energia solar térmica de baixa temperatura para climatização de edifícios

Face aos padrões atuais de vida, em que despendemos a maior parte do nosso tempo no interior de edifícios, com um nível de conforto que ninguém quer abdicar, urge o desenvolvimento de tecnologias de climatização sustentáveis. Devido a uma combinação única de fatores, casas de baixo consumo de energia (e também casas passivas) em Portugal, são particularmente adequadas de explorar as vantagens da energia solar térmica, especialmente quando combinado com armazenamento sazonal de energia. No entanto nenhum exemplo documentado existe de como esta sinergia pode ser explorada com sucesso em Portugal, ilustrando assim o modo em que a necessidade de aquecimento pode ser colmatada de uma forma sustentável sem o uso de combustíveis fósseis. A energia solar é uma excelente alternativa de fonte de energia para aquecimento de edifícios. Um principal fator que limita a sua aplicação é que é uma fonte de energia com uma disponibilidade média de variação cíclica. O uso de armazenamento sazonal de energia pode reduzir substancialmente o custo do sistema solar que é capaz de fornecer até 100% das necessidades energéticas dos edifícios. Estes sistemas são projetados para armazenar a energia solar durante o verão e reter o calor armazenado para posterior utilização durante o inverno; Abstract: SEASONAL SOLAR THERMAL ENERGY STORAGE FOR LOW TEMPERATURE HEATING BUILDINGS. Given the current standards of living, where we spent most of our time inside buildings, with a level of Comfort that no one wants to give up, urges the development of sustainable climate control technologies. Due to a unique combination of factors, low energy (and also passive) houses in Portugal are particularly well suited to exploiting the advantages of solar thermal energy especially when combined with seasonal energy storage. However no documented example there of how this synergy can be exploited successfully in Portugal, illustrating the way in which the need for heating can be addressed in a sustainable manner without the use of fossil fuels. Solar energy is an important alternative energy source for heating applications. One main factor that limits its application is that it is an energy source with an average availability of cyclical variation. The use of seasonal thermal energy storage can substantially reduce the cost of solar energy systems that can supply up to 100% of buildings energy needs. Such systems are designed to collect solar energy during the summer and retain the stored heat for use during the winter.

Sinthesys of heteroleptic zinc complexes for imaging in living cells

This thesis arose from an interest in luminescence heteroleptic bis(dipyrrinato) Zn (II) complexes and their application in cell imaging, due to their attractive and fascinating characteristics. Among imaging technologies, near-infrared fluorescence imaging has been dedicated immense attention owing to its low absorption and autofluorescence from surrounding organism and tissues in this specific spectral region, which minimize background interference and improve tissue depth penetration. An ideal near-infrared probe should be equipped with excellence chemical and photophysical properties. The target of this work is the synthesis of new heteroleptic bis(dipyrrinato) Zn (II) complexes having two main features: the emission in the near-infrared region and water-solubility. In order to purse these intentions, the low-energy emission was achieved by expansion of π-conjugation of simple dipyrrins using Knoevenagel condensation106 and tri(ethylene)glycol chain was introduced to increase the water solubility of the final complex. Photophysical and luminescent properties of the new complexes were investigated. Finally, with a view to a potential biological use of these new complexes in biological environments, their biocompatibility was tested using a cell viability assay: (3-(4,5-dimethylthiazol-2-yl)-2’-5’-diphenyltetrazolium bromide (MTT) assay.

Digital design of an EPC Gen2 controller for enhanced RFID tags

This thesis presents an improvement of the long range battery-less UHF RFID platform for sensor applications which is based on the open source Wireless Identification and Sensing Platform (WISP) project. The purpose of this work is to design a digital logic that performs the RFID EPC gen2 protocol communication, is able to acquire information by sensors and provide an accurate estimation of tag location ensuring low energy consumption. This thesis will describe the hardware architecture on which the digital logic was inserted, the Verilog code developed, the methods by which the digital logic was tested and an explorative study of chip synthesis on Cadence.

Design and Implementation of Single phase 230V to Three Phase Inverter Based on the Embedded System STM-32 Applied to motor control

In the field of Power Electronics, several types of motor control systems have been developed using STM microcontroller and power boards. In both industrial power applications and domestic appliances, power electronic inverters are widely used. Inverters are used to control the torque, speed, and position of the rotor in AC motor drives. An inverter delivers constant-voltage and constant-frequency power in uninterruptible power sources. Because inverter power supplies have a high-power consumption and low transfer efficiency rate, a three-phase sine wave AC power supply was created using the embedded system STM32, which has low power consumption and efficient speed. It has the capacity of output frequency of 50 Hz and the RMS of line voltage. STM32 embedded based Inverter is a power supply that integrates, reduced, and optimized the power electronics application that require hardware system, software, and application solution, including power architecture, techniques, and tools, approaches capable of performance on devices and equipment. Power inverters are currently used and implemented in green energy power system with low energy system such as sensors or microcontroller to perform the operating function of motors and pumps. STM based power inverter is efficient, less cost and reliable. My thesis work was based on STM motor drives and control system which can be implemented in a gas analyser for operating the pumps and motors. It has been widely applied in various engineering sectors due to its ability to respond to adverse structural changes and improved structural reliability. The present research was designed to use STM Inverter board on low power MCU such as NUCLEO with some practical examples such as Blinking LED, and PWM. Then we have implemented a three phase Inverter model with Steval-IPM08B board, which converter single phase 230V AC input to three phase 380 V AC output, the output will be useful for operating the induction motor.

Sistemi di comunicazione a corto raggio: analisi sperimentale con dispositivi NFC.

Una delle tecnologie radio che negli ultimi anni ha subito il maggior sviluppo è quella dell’identificazione a radio frequenza (Radio Frequency Identification), utilizzata in un gran numero di ambiti quali la logistica, il tracciamento, l’autenticazione e i pagamenti elettronici. Tra le tecnologie specifiche legate all’RFID si ritrova la Near Field Communication (NFC). Questa è una tecnologia di trasmissione dati a corto raggio che rappresenta un’evoluzione dell’RFID. Una delle caratteristiche dell’NFC è quella di instaurare una comunicazione tra due dispositivi in maniera semplice e intuitiva. L’oggetto che instaura la comunicazione è il Reader, nell’ambito RFID è un dispositivo altamente specializzato, poiché può lavorare a diverse frequenze operative. L’elemento innovativo che ha consentito il successo dell’NFC è il fatto che questa tecnologia possa integrare il Reader in uno strumento di comunicazione di largo uso, ovvero lo smartphone. Questo permette di inizializzare lo scambio dati, sia esso di lettura di un circuito integrato passivo o una trasmissione peer-to-peer, a seguito del naturale gesto di avvicinare lo smartphone. Analisti ed esperti del settore sono convinti del successo dell’NFC, nonostante siano state smentite le attese che vedevano l’NFC integrato in oltre la metà dei cellulari entro il 2010. Tra le molteplici applicazioni NFC in questo elaborato ci si soffermerà in particolare sul cosiddetto Smart Poster. Questo utilizzo può essere molto efficace avendo una gamma di impiego molto vasta. Per l’immagazzinamento dei dati nei Tag o nelle Smart Card si è utilizzato un protocollo d’incapsulamento dati chiamato NDEF (NFC Data Exchange Format) trattato nel capitolo 3 di questa trattazione. Nella seconda parte dell’elaborato si è realizzata una sperimentazione per misurare le distanze di funzionamento di cellulari e Reader per PC. In questo ambito si è realizzato quello che si è definito lo Smart Brick, cioè un mattone che comunica con dispositivi NFC grazie all’installazione di un Tag al suo interno. Si parlerà della realizzazione e degli strumenti software/hardware che hanno permesso di realizzare e programmare questo ”mattone elettronico”.

5g mobile communications systems

Un sistema mobile di comunicazione è un sistema di telecomunicazioni in cui è possibile mantenere la connessione o legame tra due o più utenti, anche nelle situazioni di mobilità totale o parziale degli stessi utenti. I sistemi radiomobili si stanno evolvendo dalla creazione del 1G (prima generazione) al 4G (quarta generazione). I telefoni di ogni generazione si differenziano in quattro aspetti principali : accesso radio, velocità di trasmissione dati, larghezza di banda e sistemi di commutazione. In questa tesi si affronta il tema dei sistemi 5G , negli ambienti terrestri e satellitari , in quanto sono l'ultima evoluzione dei sistemi mobili . Si introduce il passaggio dalla prima alla connessione di quarta generazione , al fine di capire perché 5G sta per cambiare la nostra vita . Quello che mi colpisce è il sito italiano www.Repubblica.it che dice : " con la nuova generazione 5 possiamo affidare le intere porzioni nette di vita". La tecnologia cellulare , infatti , ha cambiato radicalmente la nostra società e il nostro modo di comunicare . In primo luogo è cambiata la telefonia vocale , per poi trasferirsi all' accesso dati , applicazioni e servizi. Tuttavia , Internet non è stato ancora pienamente sfruttato dai sistemi cellulari. Con l'avvento del 5G avremo l'opportunità di scavalcare le capacità attuali di Internet . Il sistema di comunicazione di quinta generazione è visto come la rete wireless reale , in grado di supportare applicazioni web wireless a livello mondiale ( wwww ). Ci sono due punti di vista dei sistemi 5G : evolutivo e rivoluzionario. Dal punto di vista evolutivo, i sistemi 5G saranno in grado di supportare wwww permettendo una rete altamente flessibile come un Adhoc rete wireless dinamica ( DAWN ) . In questa visione tecnologie avanzate, tra cui antenna intelligente e modulazione flessibile , sono le chiavi per ottimizzare le reti wireless ad hoc. Dal punto di vista rivoluzionario, i sistemi 5G dovrebbe essere una tecnologia intelligente in grado di interconnettere tutto il mondo senza limiti . Un esempio di applicazione potrebbe essere un robot wireless con intelligenza artificiale .

Sviluppo di una piattaforma di crowdsensing per l'analisi di dati

Piattaforma di raccolta e analisi dei dati ambientali, raccolti da vari dispositivi. Server in node.js per ricevere e salvare i dati, client android per catturare i dati, client web per analizzare i dati attraverso una mappa e dei grafici.

Misure sperimentali per il monitoraggio e la sorveglianza di aree e strutture mediante reti di sensori wireless

Studio e realizzazione di una rete Wireless Sensor Network per il monitoraggio ambientale di area archeologica. Trasmissione dati raccolti su server tcp. Misure sperimentali su rete di sensori radar UWB per la localizzazione di un target in ambiente indoor

Lanczos subspace filter diagonalization: Homogeneous recursive filtering and a low-storage method for the calculation of matrix elements

We develop a new iterative filter diagonalization (FD) scheme based on Lanczos subspaces and demonstrate its application to the calculation of bound-state and resonance eigenvalues. The new scheme combines the Lanczos three-term vector recursion for the generation of a tridiagonal representation of the Hamiltonian with a three-term scalar recursion to generate filtered states within the Lanczos representation. Eigenstates in the energy windows of interest can then be obtained by solving a small generalized eigenvalue problem in the subspace spanned by the filtered states. The scalar filtering recursion is based on the homogeneous eigenvalue equation of the tridiagonal representation of the Hamiltonian, and is simpler and more efficient than our previous quasi-minimum-residual filter diagonalization (QMRFD) scheme (H. G. Yu and S. C. Smith, Chem. Phys. Lett., 1998, 283, 69), which was based on solving for the action of the Green operator via an inhomogeneous equation. A low-storage method for the construction of Hamiltonian and overlap matrix elements in the filtered-basis representation is devised, in which contributions to the matrix elements are computed simultaneously as the recursion proceeds, allowing coefficients of the filtered states to be discarded once their contribution has been evaluated. Application to the HO2 system shows that the new scheme is highly efficient and can generate eigenvalues with the same numerical accuracy as the basic Lanczos algorithm.

Interacción desde dispositivos Android vía Bluetooth, con juguete teledirigido, para su uso por personas con discapacidad

El Proyecto Fin de Carrera, con título, "Interacción desde dispositivos Android vía Bluetooth, con juguete teledirigido, para su uso por personas con discapacidad" pretende completar la primera versión de la aplicación sobre dispositivo Android para manejar un juguete teledirigido añadiendo nuevas formas de interactuar con el dispositivo Android. Para este caso, el juguete teledirigido es el mismo: el robot esférico llamado Sphero. Dicho robot posee una interfaz a través de la cual puede recibir instrucciones, y mediante las cuales, se puede poner en movimiento o iluminarse con diferentes colores. Esta ampliación facilitará la interacción del usuario con el dispositivo Android, además de ampliar la funcionalidad hacia la inversa: recibir los movimientos del robot Sphero en el dispositivo Android cuando es manejado con la mano. Completando la primera versión, como cumplimiento de este Proyecto Fin de Carrera, se han realizado una serie de mandos nuevos, los cuales abarcan desde el manejo del robot por instrucciones de voz, movimientos del dispositivo Android desde el que se ejecuta, describir una trayectoria dibujada previamente en el dispositivo Android, o, realizar una serie de movimientos corregidos mediante la aplicación gracias a los límites de movimientos para un usuario concreto que pueden introducirse. Además, completando lo anteriormente escrito, se ha desarrollado una aplicación web que registrará todos los datos de uso del juguete, la cual, explota una base de datos que almacena toda interacción con el juguete. Estos datos estarán asociados a un usuario, debido a que la aplicación Android debe perfilarse para el uso de un usuario concreto. El perfilado de usuario se ha completado añadiendo una serie de información que puede ser útil para la persona que analice el comportamiento de una persona con discapacidad que utilice la aplicación. Por último, se ha realizado un estudio de elementos externos que puedan facilitar la interacción con los dispositivos Android a personas que sufran alguna discapacidad. ABSTRACT. The Thesis, titled "Interaction from Android devices via Bluetooth, with remote control toy, for use by people with disabilities" project aims to complete the first version of the application on Android device to manage a remote control toy adding new ways of interacting to Android device. For this case, the remote control toy is the same: the spherical robot called Sphero. This robot has an interface through which it can receive instructions, and by means of which can be set in motion or illuminated with different colors. This expansion will facilitate user interaction with the Android device, and extend the functionality to reverse: receiving Sphero robot movements in the Android device when handled by hand. Completing the first version, in fulfillment of this Thesis, there have been a number of new controls, which range from control of robot by voice instructions, movements Android device from which it runs, describe a path drawn previously on your Android device, or perform a series of movements corrected by applying through limits of movement for a particular user can be made. Besides completing the above written, has developed a web application that will record all data on use of the toy, which exploits a database that stores all interaction with the toy. These data will be associated with a user, because the Android application should be outlined for the use of a particular user. The user profile is completed by adding a range of information that can be useful for the person to analyze the behavior of a disabled person to use the application. Finally, a study was made of external elements that can facilitate interaction with Android devices to people who suffer from a disability.